Centra
This csv plugin did not limit the col and row count.
The plugin could not create a scroll bar, it need to be supported by C2 editor (but I had suggested this request before). A possible solution is, putting the csv string into a external text file and using AJAX to read this file to be a string input.
The advantage of using csv is, user could create/edit the 2d data in excel/google doc, it's visualize, more readable and easy to edit.